Tweedledee, whose real name is Dumfree Tweed is a supervillain who operates with his cousin Tweedledum, Deever Tweed.

The two partners share a uncanny resemblance to each other, and both shared a desire for a life of crime and fixation on Lewis Carroll's novel Alice's Adventures in Wonderland. They teamed up and modeled themselves after Tweedledum and Tweedledee from the book, planning absurd schemes to trap Batman.